Laws mean nothing anymore. Selective enforcement seems to be the rule of the day.
Check it out:

More immigrants facing deportation in immigration courts across the nation are having their court cases closed because of Obama’s prosecutorial discretion policy, researchers at Syracuse University found.

Meanwhile, the number of removal proceedings initiated in immigration courts by the U.S. Immigration and Customs Enforcement (ICE) agency has dropped since the new policy was implemented.

In fiscal 2013, immigration courts cited the exercise of “prosecutorial discretion” (PD) as the reason to dismiss 16,306 cases.
That is a 68 percent increase from the 9,684 cases that were tossed in 2012 for the same reason.

In total, from October 2011 when Obama’s discretion policy was implemented through December 2013, there were 28,983 PD-related closures in immigration courts across the U.S.